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The Organization of Petroleum Exporting Countries president said the solution to high prices lies in a calmer international environment and boosting refining capacity - not increasing output which would only clog the market.

"If we do the right things by lowering international tensions, oil prices will definitely stabilize," said OPEC President Edmund Maduabebe Daukoru said in Doha, Qatar.

In the Lundberg Survey, mid-grade hit $3 a gallon, up from $2.76, while premium climbed to an average of $3.10, from $2.86 two weeks ago.

The survey covered the period from April 7 through April 21.

Among the stations surveyed, the lowest average price in the country for regular unleaded was in Boise, Idaho, at $2.54 a gallon.

Drivers in San Diego were paying the most for gas, at an average of $3.12 a gallon for regular.